Conformator



C. A. NEWBERG AND E. l. WEISBERGER.

CONFORMATOR.

APPLICATION FILED JAN- 13 1919.

1,328,538. Patented J an. 20, 1920.

2 SHEETS-SHEET I.

wwmtozs ZZh/ez's 307e," $11 $51 I I O I C. A. NEWBERG AND E. l.WEISBERGER.

CONFORMATOR.

APPLICATION FILED JAN. [3. 1919.

Patented J an. 20, 1920.

2 SHEETS-SHEET 2.

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.EZ- Weigh w,- W 1 6 rel i the county of Kings and State of New UNITEDSTATES PATENT OFFICE.

CHARLES A. NEWBERG AND EDWARD I. WEISBERGER, 0F BROOKLYN, NEW YORK.

CONFORMATOR.

Specification of Letters Patent.

Patented Jan. 20', 1920.

Application filed January 13, 1919. Serial no. 270,907;

To all whom it may concern:

Be it known that we, CHARLES A. NEW- BERG and EDWARD I. WEISBERGER,citizens of the United States, residing at Brooklyn, in

York, have invented certain new and useful Improvements in Conformators,of which thefollowing is a specification, reference being had to theaccompanying drawings.

This invention relates to certain improvements in conformators, and hasrelation more particularly to a device of this general characterincluding a flexible band or spline, and it isan object of the inventionto provide a device of this general character having novel and improvedmeans whereby the band or spline may be readily and convenientlyadjusted into different curvatures compound or otherwise and effectivelymain tained in a desired arrangement.

It is also an object of the invention to'provide a novel and improveddevice of this general character including a body adapted An additionalobject of the invention is to provide a novel and improved devicewherein the flexible band or spline has its rear or inner face providedwith a longitudinally disposed groove or'channel in which theextremities of a plurality of are slidably engaged, and wherein saidarms are supported for adjustment both laterally and longitudinally.

A still further object ofthe invention is to provide a novel andimproved device of this general character wherein the armsmay beadjusted laterally or longitudinally" in accordance with a scale ofunitsof linear measure, so that the device or instrument isadapted tothe production of curves of known coordinates.

The invention consists in the details of construction and in-thecombination and ar rangement of the several parts of our im: provedconform'ator' whereby certain im portant advantages are attained and thedevice rendered simpler, less expensiveand otherwisem'ore convenientandadvantageous for use, as will be 'heremafterm'orefully set The novelfeatures of our invention will hereinafter be definitely claimed.

In order that our invention may the better understood, we will nowproceed to describe the same with reference to the accomp anyingdrawings, wherein Figure 1 is a View in top plan with aportion brokenaway of a conformator con structed in accordance with an embodimentofour invention Fig. 2 is an enlarged view partly inrear elevation andpartly" in section of the device as illustrated in Fig. 1;

Fig. 3 is an enlarged sectional view taken substantially on the line 3-3of Fig. 1;

Fig. l is an enlarged fragmentary view in end elevation illustrating apivotal mounting for the arms as herein embodied;

Fig. 5 is anenlarged sectional view taken substantially on the line 55of Fig. 1;

Fig. Gisan enlarged sectional view taken longitudinal margin of saidbase are the" arms 1 terminating 'in the upstanding'bea'rings 2. As isclearly illustrated in Figs. 2 and 4', the 'lower or bottoinface of" theextended portion of each -of-the armsl isflush' with the undenor bottornface of'the base Bi Extending within each of the bearings 2' is a-shortshaft ontrunnion'3, and the inner end portion of said shaft" ortrunnionB at its central portionisprovided with a' flat extension 4which overlies an end portion of a flat bare}. The bar 5 snugly fitsbetween the shafts or trunnions'3'and theover lying e xtensim's 4e serveas-spacing members" and upon which rest the opposite end portionsofasecond fiat' bar 5 arranged in parallelism With thebar'5'. Thebars 5and 6 are secured orancho'redto the inwardly directed extensions l' ofthe shafts o'r'trun mouse 3 by the screws 7, as is" particularlyillustrated in Fig. 2. The second bar 6 is provided with a slot 8disposed longitudinally thereof substantially its entire length,andsnugly fitting between the bars 5 and 6 are the blocks 9 having inthreaded engagement therewith clamping screws 10, and which screws aredisposed through the slot 8. It will be self evident that upon requisiteturning of each of the screws 10 the -14 carried by a block 9 and whichextension 14 is secured to the member 11 by a screw 15 or the like. Thebar 11 freely contacts with the upper surface of the base B and theunder face of said member 11 adjacent its forward or free extremity isprovided with a transversely disposed groove or channel 16 which snuglyreceives the guiding key 17 secured to the upper face of the base B andarranged in parallelism with the bar 5.

Slidably engaged within the groove 12 of each of the members 11 is anelongated arm 18, and which arm is adapted for sliding movementlongitudinally of the member 11. The forward end of the arm 18terminates in advance of the outer or free end of the member 11 and saidarm 18 is also disposed beneath a plate 19 overlying the upper face ofthe member 11 and bridging the slot 12 thereof. One end portion of theplate 19 is provided with a depending extension or flange 20 contactingwith a side face of the member 11, and said extension or flange 20 isanchored to the member 11 through the medium ofa screw 21 or the like.Threaded through the plate 19 is a binding screw 22 which coact-s withthe arm 18 for locking the same against longitudinal movement after saidarm 18 has. been properly adjusted.

As is particularly illustrated in Fig. 3, the outer end of each of thearms 18 is provided with a laterally directed extension or lug 23 whichisengaged within a groove or channel produced longitudinally of thespline or flexible band S, so that the desired fiexure may be applied tothe spline or band S upon movement of'the arm longitudinally orlaterally. If preferred, however, the outer end portion of each of thearms 18 may be provided with a cross head 24 engaged within the grooveor, channel of the spline or band S or the outer extremity of an arm 18"may be provided with a rounded member 25 for coaction with the spline orband S. The spline or band S may be made of. celluloid or other materialreadily bendable, and said spline or band S is of a width whereby thesame may engage a drawing surface or the like when the arms 18 are intheposition shown'in the accompanying drawings or have been swungbackwardly an angle of 180 degrees. The swinging of the arms 18 in thismanner is afforded by the mounting of the shafts or trunnions 3 withwhich the bars 5 and 6 are engaged. In order to lock the arms 18, ormore particularly the members 11, in the position shown in the drawings,the bearings 2 have threaded therethrough clamping screws 26 for bindingengagement with the shafts or trunnions 3.

The upper surface of each of the arms 18 has produced thereongraduations 27 arranged in accordance with units of linear measure, andwhich graduations coact with the outer end of the member 11 so that saidarm may be extended or retracted in accordance with the occasions ofpractice. The upper face of the bar 6 is also provided with thegraduations 28 arranged in accordance with units of linear measure, andcoacting with said graduations is an index or mark 29 produced on theupper face of the extension 14 of each of the blocks 9, so that saidblocks 9 or more particularly the arms 18 may be laterally adjusted oradjusted in a direction longitudinally of the base B as may be requiredin practice.

Through the medium of the graduations 27 and 28, a curve having knowncoordinates may be readily laid out, as the necessary longitudinal orlateral adjustment of the arms 18 may be obtained with exactness. Todraw a curve through any number of known points, it is only necessary tomove the members 11 laterally or in a direction longitudinally-of thebase B to the required relative lateral distances and then to extend orretract the arms 18 in accordance with the various longitudinaldistances. To draw a symmetrical curve it is only necessary to loosenthe screws 26 and to swing the members 11 through 180 degrees.

It will also be self evident that the base B will afford suflicientweight whereby the instrument may be effectively maintained in desiredposition upon the surface being worked.

From the foregoing description, it is thought to be obvious that aconformator constructed in accordance with our invention is particularlywell adaptedfor use by reason of the convenience and facility with whichit may be assembled and operated, and it will also be obvious that ourinvention is susceptible of some change and modification withoutdeparting from the principles and spirit thereof, and for this reason.we do not wish to be understood as limiting ourselves to the precisearrangement and formation of the several parts herein shown in carryingout our invention in practice except as hereinafter claimed.

We claim:

1. A device of the class described comprising a base, a bar supported bysaid base for rotary movement, a multiplicity of members engaged withsaid bar and being capable of adjustment one independently of the otherlongitudinally of the bar, said members being in parallelism, armsslidably engaged with said members and movable longitudinally thereof,said arms ex tending beyond the members, a flexible spline with whichthe extended portions of the arms are slidably engaged, and means forlocking each of the arms against move ment longitudinally of the member.

2. A device of the class described comprising a base, a bar supported bysaid base for rotary movement, a multiplicity of members engaged withsaid bar and being capable of adjustment one independently of the otherlongitudinally of the bar, said members being in parallelism, armsslidably engaged with said members and movable longitudinally thereof,said arms ex tending beyond the members, a flexible spline with whichthe extended portions of the arms are slidably engaged, means forlocking each of the members against movement longitudinally of the bar,and means for locking each of the arms against movement longitudinallyof the member.

3. A device of the class described comprising a base, a plurality ofmembers overlying said base, means connecting the members to the basewhereby the same may be laterally adjusted one independently of theother, a face of each of said members being longitudinally grooved, anarm slidably engaged within the groove of each member, and extendingbeyond an end of said member, a plate carried by each of the members andextending across the groove and the arm therein, a flexible spline withwhich the extended portions of the arms are slidably engaged, and aclamping member carried by each of the plates and coacting with an armfor holding said arm against longitudinal movement.

4. A device of the class described comprising a base, a plurality ofmembers overlying said base, means connecting the members to the basewhereby the same may be laterally adjusted one independently of theother, a face of each of said members being longitudinally grooved, anarm slidably engaged within the groove of each member and extendingbeyond an end of said member, a plate carried by each of the members andextending across the groove and the arm therein, and a flexible splinewith which the extended portions of the arms are slidably engaged, theopposite face of each of the members being provided with a transverselydisposed groove, and a guiding key carried by the base and snuglyfitting within the groove of each of the members when said member is incontact with the base.

In testimony whereof we hereunto aflix our signatures in the presence oftwo witnesses.

CHARLES A. NEWBERG. EDWARD I. WEISBERGER.

Witnesses PHILIP FERTEL, MORTIMER LIFLAND.

